Reply To: front end shimmey

[Rick Horne]

Ed,

Not sure where you are getting your information but, positive caster is what makes the steering heavier and also makes the car straighten after a turn. The only vehicles I know of using negative caster are large earth moving equipment.

At any rate those factors are not the problem. By adding positive caster we are trying to convince the wheels not the shimmy. As we increase the trail distance by adding positive caster to the the front wheels we can sometimes lessen or remove the shimmy. My personal opinion is as others have mentioned that it is a gyroscopic balance issue.

Happy Motoring,

Rick